What was found
BOTH FUEL FLOW AND N1 +/- 2 PERCENT IN CRUISE LT FUEL FLOW ON 4 OCCASIONS FLUCTUATED 10 PERCENT. SUSPECTED FUEL CONTAMINATION, SUMPED ALL FUEL TANKS FOUND EVIDENCE EXCESSIVE WATER IN TANKS. DRAINED ALL FUEL TANKS SUMPED TANKS AGAIN FOR COMPLETION OF TANK DRAIN. REFUELED ACFT RESUMPED ALL TANKS WITH NO EVIDENCE OF WATER FOUND. ACFT HAS SINCE OPERATED WITH NO FURTHER DIFFICULTIES. NOTIFIED FUEL COMPANIES AT LAST 3 FUELING LOCATIONS. ALL REPORTED CHECKING TRUCKS, TANKS AND OTHER ACFT WITH NO DISCREPANCIES OR WATER FOUND IN ANY SAMPLES.